http://code.google.com/p/nestedsortables/

<script src="/api/jquery/jquery.js"></script>  
<script type="text/javascript" src="/com/NestedSortable/api/externals/released-externals/interface-1.2.js"></script> 
<script type="text/javascript" src="/com/NestedSortable/api/externals/json/json.js"></script>        
 
<script type="text/javascript" src="/com/NestedSortable/api/compressed/nested_sortable/inestedsortable.js"></script>
<script type="text/javascript" src="/com/NestedSortable/api/compressed/widget/jquery.nestedsortablewidget.js"></script>

<script type="text/javascript">

    jQuery( function($) { 
    
$('#[php_property:id]').NestedSortableWidget({
    
    loadUrl: "/com/NestedSortable/api/test/widget/json_load.php"
    
});


});

</script>
